License cleanup: add SPDX license identifier to uapi header files with no license

Many user space API headers are missing licensing information, which
makes it hard for compliance tools to determine the correct license.

By default are files without license information under the default
license of the kernel, which is GPLV2.  Marking them GPLV2 would exclude
them from being included in non GPLV2 code, which is obviously not
intended. The user space API headers fall under the syscall exception
which is in the kernels COPYING file:

   NOTE! This copyright does *not* cover user programs that use kernel
   services by normal system calls - this is merely considered normal use
   of the kernel, and does *not* fall under the heading of "derived work".

otherwise syscall usage would not be possible.

Update the files which contain no license information with an SPDX
license identifier.  The chosen identifier is 'GPL-2.0 WITH
Linux-syscall-note' which is the officially assigned identifier for the
Linux syscall exception.  SPDX license identifiers are a legally binding
shorthand, which can be used instead of the full boiler plate text.

This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.  See the previous patch in this series for the
methodology of how this patch was researched.

Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

17 files changed, 17 insertions, 0 deletions

diff --git a/include/uapi/linux/netfilter_bridge/ebt_802_3.h b/include/uapi/linux/netfilter_bridge/ebt_802_3.h
index f37522aade24..03463e4b0246 100644
--- a/include/uapi/linux/netfilter_bridge/ebt_802_3.h
+++ b/include/uapi/linux/netfilter_bridge/ebt_802_3.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__LINUX_BRIDGE_EBT_802_3_H
 #define _UAPI__LINUX_BRIDGE_EBT_802_3_H
 
diff --git a/include/uapi/linux/netfilter_bridge/ebt_among.h b/include/uapi/linux/netfilter_bridge/ebt_among.h
index bd4e3ad0b706..9acf757bc1f7 100644
--- a/include/uapi/linux/netfilter_bridge/ebt_among.h
+++ b/include/uapi/linux/netfilter_bridge/ebt_among.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_BRIDGE_EBT_AMONG_H
 #define __LINUX_BRIDGE_EBT_AMONG_H
 
diff --git a/include/uapi/linux/netfilter_bridge/ebt_arp.h b/include/uapi/linux/netfilter_bridge/ebt_arp.h
index dd4df25330e8..628b4fdae542 100644
--- a/include/uapi/linux/netfilter_bridge/ebt_arp.h
+++ b/include/uapi/linux/netfilter_bridge/ebt_arp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_BRIDGE_EBT_ARP_H
 #define __LINUX_BRIDGE_EBT_ARP_H
 
diff --git a/include/uapi/linux/netfilter_bridge/ebt_arpreply.h b/include/uapi/linux/netfilter_bridge/ebt_arpreply.h
index 6fee3402e307..ed41ae053597 100644
--- a/include/uapi/linux/netfilter_bridge/ebt_arpreply.h
+++ b/include/uapi/linux/netfilter_bridge/ebt_arpreply.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_BRIDGE_EBT_ARPREPLY_H
 #define __LINUX_BRIDGE_EBT_ARPREPLY_H
 
diff --git a/include/uapi/linux/netfilter_bridge/ebt_ip.h b/include/uapi/linux/netfilter_bridge/ebt_ip.h
index c4bbc41b0ea4..8e462fb1983f 100644
--- a/include/uapi/linux/netfilter_bridge/ebt_ip.h
+++ b/include/uapi/linux/netfilter_bridge/ebt_ip.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  ebt_ip
  *
diff --git a/include/uapi/linux/netfilter_bridge/ebt_ip6.h b/include/uapi/linux/netfilter_bridge/ebt_ip6.h
index a062f0ce95f9..057945dd66bc 100644
--- a/include/uapi/linux/netfilter_bridge/ebt_ip6.h
+++ b/include/uapi/linux/netfilter_bridge/ebt_ip6.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  ebt_ip6
  *
diff --git a/include/uapi/linux/netfilter_bridge/ebt_limit.h b/include/uapi/linux/netfilter_bridge/ebt_limit.h
index 66d80b30ba0e..c2ac02e1fab6 100644
--- a/include/uapi/linux/netfilter_bridge/ebt_limit.h
+++ b/include/uapi/linux/netfilter_bridge/ebt_limit.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_BRIDGE_EBT_LIMIT_H
 #define __LINUX_BRIDGE_EBT_LIMIT_H
 
diff --git a/include/uapi/linux/netfilter_bridge/ebt_log.h b/include/uapi/linux/netfilter_bridge/ebt_log.h
index 7e7f1d1fe494..f6724155af91 100644
--- a/include/uapi/linux/netfilter_bridge/ebt_log.h
+++ b/include/uapi/linux/netfilter_bridge/ebt_log.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_BRIDGE_EBT_LOG_H
 #define __LINUX_BRIDGE_EBT_LOG_H
 
diff --git a/include/uapi/linux/netfilter_bridge/ebt_mark_m.h b/include/uapi/linux/netfilter_bridge/ebt_mark_m.h
index 410f9e5a71d4..098ac78cd1e6 100644
--- a/include/uapi/linux/netfilter_bridge/ebt_mark_m.h
+++ b/include/uapi/linux/netfilter_bridge/ebt_mark_m.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_BRIDGE_EBT_MARK_M_H
 #define __LINUX_BRIDGE_EBT_MARK_M_H
 
diff --git a/include/uapi/linux/netfilter_bridge/ebt_mark_t.h b/include/uapi/linux/netfilter_bridge/ebt_mark_t.h
index 7d5a268a4311..8810f1c12af3 100644
--- a/include/uapi/linux/netfilter_bridge/ebt_mark_t.h
+++ b/include/uapi/linux/netfilter_bridge/ebt_mark_t.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_BRIDGE_EBT_MARK_T_H
 #define __LINUX_BRIDGE_EBT_MARK_T_H
 
diff --git a/include/uapi/linux/netfilter_bridge/ebt_nat.h b/include/uapi/linux/netfilter_bridge/ebt_nat.h
index c990d74ee966..49da2f9be021 100644
--- a/include/uapi/linux/netfilter_bridge/ebt_nat.h
+++ b/include/uapi/linux/netfilter_bridge/ebt_nat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_BRIDGE_EBT_NAT_H
 #define __LINUX_BRIDGE_EBT_NAT_H
 
diff --git a/include/uapi/linux/netfilter_bridge/ebt_nflog.h b/include/uapi/linux/netfilter_bridge/ebt_nflog.h
index df829fce9125..f5cdc068c264 100644
--- a/include/uapi/linux/netfilter_bridge/ebt_nflog.h
+++ b/include/uapi/linux/netfilter_bridge/ebt_nflog.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_BRIDGE_EBT_NFLOG_H
 #define __LINUX_BRIDGE_EBT_NFLOG_H
 
diff --git a/include/uapi/linux/netfilter_bridge/ebt_pkttype.h b/include/uapi/linux/netfilter_bridge/ebt_pkttype.h
index c241badcd036..32c5d08b31d3 100644
--- a/include/uapi/linux/netfilter_bridge/ebt_pkttype.h
+++ b/include/uapi/linux/netfilter_bridge/ebt_pkttype.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_BRIDGE_EBT_PKTTYPE_H
 #define __LINUX_BRIDGE_EBT_PKTTYPE_H
 
diff --git a/include/uapi/linux/netfilter_bridge/ebt_redirect.h b/include/uapi/linux/netfilter_bridge/ebt_redirect.h
index dd9622ce8488..dc7a7ce25902 100644
--- a/include/uapi/linux/netfilter_bridge/ebt_redirect.h
+++ b/include/uapi/linux/netfilter_bridge/ebt_redirect.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_BRIDGE_EBT_REDIRECT_H
 #define __LINUX_BRIDGE_EBT_REDIRECT_H
 
diff --git a/include/uapi/linux/netfilter_bridge/ebt_stp.h b/include/uapi/linux/netfilter_bridge/ebt_stp.h
index 1025b9f5fb7d..94f68dedc3f6 100644
--- a/include/uapi/linux/netfilter_bridge/ebt_stp.h
+++ b/include/uapi/linux/netfilter_bridge/ebt_stp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_BRIDGE_EBT_STP_H
 #define __LINUX_BRIDGE_EBT_STP_H
 
diff --git a/include/uapi/linux/netfilter_bridge/ebt_vlan.h b/include/uapi/linux/netfilter_bridge/ebt_vlan.h
index 967d1d5cf98d..fb0d8f604c23 100644
--- a/include/uapi/linux/netfilter_bridge/ebt_vlan.h
+++ b/include/uapi/linux/netfilter_bridge/ebt_vlan.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_BRIDGE_EBT_VLAN_H
 #define __LINUX_BRIDGE_EBT_VLAN_H
 
diff --git a/include/uapi/linux/netfilter_bridge/ebtables.h b/include/uapi/linux/netfilter_bridge/ebtables.h
index e3cdf9f1a259..9ff57c0a0199 100644
--- a/include/uapi/linux/netfilter_bridge/ebtables.h
+++ b/include/uapi/linux/netfilter_bridge/ebtables.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  ebtables
  *